A useful morphological analysis separates root, pattern and contextual sense:
WordRootMorphological cue
اِنْكَسَرَك س رin- plus root
اِنْغَلَقَغ ل قin- plus root
اِنْطَلَقَط ل قin- plus root
اِرْتَفَعَر ف عForm VIII, not Form VII
Ask: (1) What is the root? (2) What is the derived pattern? (3) Which textbook usage does this context show? The procedure also prevents the mistake of calling اِرْتَفَعَ Form VII.